================
@@ -3807,6 +3800,18 @@ bool SIInstrInfo::foldImmediate(MachineInstr &UseMI,
MachineInstr &DefMI,
removeModOperands(UseMI);
UseMI.setDesc(get(NewOpc));
+ if (NewOpc == AMDGPU::V_FMAMK_F16_t16 ||
+ NewOpc == AMDGPU::V_FMAMK_F16_fake16) {
+ auto Tmp = MRI->createVirtualRegister(
+ NewOpc == AMDGPU::V_FMAMK_F16_t16 ? &AMDGPU::VGPR_16_Lo128RegClass
+ :
&AMDGPU::VGPR_32_Lo128RegClass);
----------------
arsenm wrote:
Can you instead query the register class from the instruction definition, i.e.
getRegClass()
https://github.com/llvm/llvm-project/pull/173317
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